Blower for boilers.



T. S. WALLER 61: E; B. BARNHILL. BLOWER FOR BOILERS. APPLICATION FILED n13.21, 1910.

981,146. 1 Patented Jan. 10,1911. .1

d I a m-1112111101,), I 129 5 r3] I I K Remus; QLWU ex 2.2mm MR ExPaQR to provide'an eflicient device for'the purpose UN ED STATES PgiTENT OFFICE.

traumas-s. WALLBB Lalo nnwa'an n'nsmmmn, or smote, nrenrea v, AssIGNoBs romnnomi rowan sanctum comma-or person, MICHIGAN, A comm- .erence being had therein. to the accompanying drawings.

This invention relates to improvements in blowersfor tubular boilers and its object is and simple. cheap and convenient means for setting showing a vention in place operating the same to ether with certain other new and useful e'atures in the construction, arrangement and combination of parts all as hereinafter-more fully described reference being had to the accompanying drawing, in which. I

Figure his avertical section through a boiler and the adjacentwall of the boiler device embodying the inwithin a'recess in the wall; Fig. 2, is a similar vertical section through the wall showing the blower in projected position: and Fig. 3 is a'horizont-al'section substantially on theline :rw of Fig. 1.j

As shown in the drawings 1 represents a boiler of the ordinary construction having water tubes 2. and 3 is the masonry wall' of the boiler setting adjacent to the boilerand having a recess or opening therethrough opposite the boiler tubes. This openmgor. recess is formed with an outer enlarged end 4 having flaring sides and opening thrpugh the outer face of the wall," and an inner contracted portion or throat 5, opening through the inner enlarged lpart 4 of the recess. Plates 6 and 7 -form t e upper, and lower ends respectively of theopening and anglebarsB and9 extendbetween the plates 6 and 7 to support the same and form a door frameffor a swin ing door 10. These angle'bars are located at the entrance tothe throat 5 from the outer chamber 4 and the door 10 is pivoted at one edge to the turn inward parallel-wit throat out of the way of through, said door lyin throat when so turned one side ofthe the assa'gertherewho ly wlthin the y a handle 11 and engaging the-angle bar 9 which forms a jamb therefor when-in closed-position across the throat. In the bottom plate 7 is a groove to project face of the wall from the:

plates 6,and. 7 to BLowEn ro'nxnormns.

l2 and'slida'bly en a 'n .;.sa'm rib 13 on the Iovv'er sid g header-"tn tube "eatends vertically upward within the recess mthe wall to near the upper-bend thereof and. 15 provided with a series of jet nozzles 16 ln-one side in spaced relation to the boiler tubes 'todirect steam jets'between the tubes. In order to blow the :tulllength of the tubes the header pipe is rotated upon I its axis Wltlllll' the base 14 by means of ap- Patented Jan. 10, 1911. Q

veis-a elof a hol ow base 14 n the upper side of which-is stepped a; e-15to rotate therein. The header?" worm gear 17 secured to the. lower end of] the pipe engagedby the worm 18 mounted on the base and actuated by a shaft 19.vex+

tending outwardly therefrom and provided with a hand.-wheel. 20.

A short steam'pipe 21 is secured inqthe basel t to deliver steam thereto and extends outwardlyj and is provided with a horizonf f tal elbow at 'itsiouter nd connected to. a

swivel .joint 32, pivotally connectingift-he steam pipe 21 and an upwardly extending};

pipe '22 which is provided with a sh v 23 intermediate 1 ts ends and is .pivotall nected by'a joint-'24-at' its-upper end to a fixed feedpipe 25-for delivering steam there to vfromthe boiler or other source of supply.' fWhen the base 14is moved along the groove] IQ-the pipe 22 will swing" on its' pivotfl l to permitsnch movement. To slide the head along the header-pipe 15 through the throat toward 'theboiler tubes. a link 26 is pivotallv attached at one end tolthe base 14 the uideway 1a i *and at i-tsopposite end to the short arm 27 of a bell crank lever to a bracket 28 on "the plate 7 and the lon' arm 29 of which bell crank formsa handle bymeans of which it is turned. When the'header is; rojected as shown in Fig. 2, and the hand e 29 is up, the pivotal point of connection between the link 26 and short a rm27-of'thelever will" be below a line drawn through the support 'of said lever and the pivota point of attachment of the link tothe base 14, said lever throwing past the center and thus lockin 'the header in projected position.

- -Pro ect-ing laterally. gfromone side of the base-14 is a lug 30 of the :head and the upper-surface of and on the plate T is ahooktllbeneath-wliiclfithelug en ages wheni I bars 8 and 9 within outside of the wall the outer side of end to said steam supply retracted. The steam. -;ipipe connection is arranged to lie wholly within-the recess in the Wall and thus take; up none: of the space availablefor. other purposes. WVhen' the headerisprojected' to operative position and steam is turned on the force of the escaping steam would tend to overthrow the header-and the locking lug 30 is therefore provided as a cheap and convenient means for locking the header in upright-position and also limiting its upward movement toward the steam pipes. The arrangement 'ofplates 6 and 7 and the angle the opening in the wall forms a cheap and convenient casing for the recess and supportingmeans for the several parts.

Having thus fully described our invention what we claim is:- I

'1;-T,he Combination with a wall of a boiler "setting having an opening therethrough, forming a recess therein, of a plate in the bottom slot; a hollow base engaging and slidable within'said slot, a header pipe carried by thebase and extending upward within" the recess, a steam supply pipe extending into the recess near its upper end, a pipe pivotallyattached at its upper pipe and pivotally attached at its lower end to the reciprocable base,'a slip joint in the swing pipe, and

-means operable through the outer side of the recess for reciprocating the base with header.

2. The combination with a wall of a boiler.

setting having a recess therein forming an enlarged end at the opening through the outer face of'the wall and a contracted por- 1 'tion forming athroat o in the lower end of said ening through the a base reciprocable innerfaee of the Wall, 0 recess through the throat, a header pipe extending upwardly for x reciprocating ,-a door pivotally'supportedfat one side of from the base and carried thereby, means the base and header, and

said throat near the outer end thereof to turn within the throat across the same and to lie wholly within said throat adjacent to the side thereof when in open position.)

3. The combination with a wall of a boiler a recess extending theresetting having up but little space its l f1g V boiler setting a header 'slidable the header, and means on the plate toengage of the recess having a guide through, a header reciprocable within the lower end of the recess, means for supplying within the recess, a link steam to the'header pivotallyattachedizit one end to the header,

and a bellficrank lever having its short arm of the link,

pivotally attached to the end arm forming a hand lever by means of which the bell crank may be turned to reciprocate the header. 7

m .4..The combination. with the wall of :1 having a recess extending therethrough, of a plate forming the bottom of-the recess and providedwith a guideway, in the guideway, a lug on the upper side of the lug when the header is moved to the inner side of the wall and lock the header to the plate, and means for reciprocating the header. I

5. The combination with a wall of a boiler setting having a recess extending there-' through, of a plate, in the bottom of the recess formed with a for supplying steam.v to the hollow base, a

header pipe extending upward from and supported by the base, et nozzles in one side of the header pipe, a hook on the bottom plate at the inner side of the wall,'a lug on the base projecting laterally therefrom and adapted to engage the hook, and means for reciprocating the base in its guideway.

6. The combination with a wall of a boiler setting having a recess extending ,therethrong said recess having an enlar ed outer end opening through the outer side of the wall and a contracted portion -forming a throat opening through the innerside of a wall, of a plate in the bottom of the recess having a guideway a plate forming thetop of the ,recess, angle bars extending between said plates and located at the outer end of the throat, said angle bars forming the side members of a door frame, a door .pivotally supported adjacent to-one of the angle bars to be turnedacross the'throat into engagement with the other angle bar, a base reciprocable in the plate, an upwardly extending headersupported by the base, means within-thei'outer enlarged portion of the recess for supplying steam tothe base, and means for reciprocating the base with its header.

7 In testimony whereof we afiix our signatures in presence of two witnesses.

THOMAS s. WALLER' EDWARD B. BARNHILL.

Witnesses:

p Orro F. BARTHEL,

;Ln w1s E. F ANoERs.

guideway, a hollow base reciprocable in said guldeway, means way in the lower a 

